Ajitiya, Virga (2025) Identifikasi Strutktur Bawah Permukaan di Pemandian Air Panas Nganget, Kecamatan Bangilan, Kabupaten Tuban dengan menggunakan Metode Magnetik. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kabupaten Tuban memiliki potensi panas bumi yang ditandai dengan munculnya manifestasi berupa mata air panas yang berada di Pemandian Air Panas Nganget. Penelitian ini bertujuan untuk mengetahui penyebab munculnya manifestasi panas bumi dan memperkirakan kedalaman sistem panas bumi menggunakan metode magnetik. Observasi data magnetik sebanyak 589 titik. Data hasil pengukuran selanjutnya dikoreksi harian dan International Geomagnetic Reference Field, pemisahan anomali (regional dan residual), Reduction to Pole (RTP), lineament, dan Tilt derivative (TDR). Hasil penelitian menunjukkan adanya dugaan zona anomali magnetik yang berkorelasi dengan keberadaan patahan dan rekahan sebagai jalur perpindahan fluida panas bumi hingga naik ke permukaan sebagai manifestasi. Selanjutnya, anomali residual diinversi menggunakan metode Flower Pollinaion Algorthm (FPA) untuk mengidentifikasi kedalaman sistem panas bumi. Hasil penelitian menunjukkan adanya sistem panas bumi yang diduga sebagai zona hidrotermal atau jalur aliran fluida panas yang naik ke permukaan melalui rekahan atau sesar. Kedalaman sistem panas bumi yang teridentifikasi berada pada rentang antara 37,8 - 64,8 meter di bawah permukaan, dengan orientasi ke arah barat daya dan selatan, terutama di sekitar area mata air panas 1 dan mata air panas 2. Penelitian ini diharapkan dapat memberikan kontribusi dalam eksplorasi panas bumi di wilayah tersebut serta menjadi dasar bagi pemanfaatan energi panas bumi secara berkelanjutan.
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Tuban Regency has geothermal potential indicated by the presence of geothermal manifestations in the form of hot springs located at Nganget Hot Spring. This study aims to determine the cause of geothermal manifestations and estimate the depth of the geothermal system using the magnetic method. Magnetic data observations were conducted at 589 points. The measured data were subsequently processed through daily correction and the International Geomagnetic Reference Field (IGRF), anomaly separation (regional and residual), Reduction to the Pole (RTP), and Tilt Derivative (TDR). The results indicate a suspected magnetic anomaly zone that correlates with faults and fractures, which serve as pathways for geothermal fluid to migrate toward the surface as manifestations. Furthermore, the residual anomaly was inverted using the Flower Pollination Algorithm (FPA) to identify the depth of the geothermal system. The results of this study indicate the presence of a geothermal system, which is interpreted as a hydrothermal zone or a pathway for hot fluid flow ascending to the surface through fractures or faults. The identified geothermal system is located at a depth range of 37.8 to 64.8 meters below the surface, with a structural orientation trending southwest and south, particularly around the areas of hot spring 1 and hot spring 2. This research is expected to contribute to geothermal exploration in the area and serve as a foundation for the sustainable utilization of geothermal energy.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Anomali Magnetik, Metode Magnetik, Sistem Panas Bumi, Magnetic Anomaly, Magnetic Method, Geothermal System. |
| Subjects: | G Geography. Anthropology. Recreation > G Geography (General) > G109.5 Global Positioning System G Geography. Anthropology. Recreation > G Geography (General) > G70.217 Geospatial data Q Science > QC Physics > QC765 Magnetic materials |
| Divisions: | Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | Virga Ajitiya |
| Date Deposited: | 05 Aug 2025 02:35 |
| Last Modified: | 05 Aug 2025 02:37 |
| URI: | http://repository.its.ac.id/id/eprint/127343 |
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